CN101580749B - Industrial coal briquette and preparation method thereof - Google Patents
Industrial coal briquette and preparation method thereof Download PDFInfo
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- CN101580749B CN101580749B CN2009100745028A CN200910074502A CN101580749B CN 101580749 B CN101580749 B CN 101580749B CN 2009100745028 A CN2009100745028 A CN 2009100745028A CN 200910074502 A CN200910074502 A CN 200910074502A CN 101580749 B CN101580749 B CN 101580749B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/02—Use of additives to fuels or fires for particular purposes for reducing smoke development
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention provides an industrial coal briquette which comprises the following components according to weight by parts: 90 to 98 parts of coal, 0.25 to 1.0 part of caking agent, 0.0025 to 0.01 partof cross linker, 1.5 to 8 parts of hot-setter and 0.25 to 0.65 part of waterproof agent. The preparation method of the coal briquette is simple, a small amount of caking agent is used, and applicabil ity is strong; the prepared product has the advantages of high dry and wet strength, favorable water resistance, favorable thermal stability and the like, burn-off rate of coal briquette is high, and the content of fume pollutants is low.
Description
Technical field
The present invention relates to moulded coal, specifically belong to a kind of industrial shaping coal and preparation method thereof.
Background technology
Starch is used as briquette binder, and addition is few, and cost is low; Briquette prod intensity is high; But the moulded coal hot strength is poor, water resistance is poor, sticker adds complex procedures simultaneously, is W-Gum like the sticker that adopts among the patent CN1793299A " a kind of moulded coal that adopts starch material as sticker ", and its production process is that W-Gum adds alkali, water; At 65-75 ℃ of following heated and stirred 35-45 minute, the starch paste of processing mixed with coal again.
Summary of the invention
The purpose of this invention is to provide that a kind of cold strength is high, water resistance is good, with low cost, the simple industrial shaping coal of production technique and preparation method thereof.
A kind of industrial shaping coal provided by the invention, component is counted by weight: coal 90-98, sticker 0.25-1.0, linking agent 0.0025-0.01, hot-setter 1.5-8, water-resisting agent 0.25-0.65;
Described coal can be in fine coal, coal slime and the coal gangue (be crushed to 3mm below) one or more;
Described sticker is modified starch such as modified corn starch, cassava modified starch or wheat modified starch etc.;
Described linking agent is a borax, is industrial goods;
Described hot-setter is a sodium bentonite;
Described water-resisting agent is that mass concentration is methyl silanol salt or the vinylformic acid of 10-20%.
The preparation method of a kind of industrial shaping coal provided by the invention comprises the steps:
(1) in proportion sticker, linking agent and hot-setter are mixed;
(2) step (1) is mixed powder adds in the coal stirring and evenly mixing;
(3) water with moulded coal raw material gross weight 6-13% joins in the material of step (2) mixing stirring and evenly mixing;
(4) in the material of step (3) gained, add the water-resisting agent stirring and evenly mixing, coldmoulding, oven dry gets product.
Compared with prior art, the invention has the advantages that:
(1) consumption of additive of the present invention is few, and total amount is less than 10%, and wherein sticker is merely the ppt of moulded coal amount, makes the moulded coal ash content reduce relatively, and calorific value increases relatively.
(2) sticker of the present invention can directly add with dry mash, is fit to the high situation of feed coal water cut, like washed coals such as coal slime, middle coals.In the prior art, starch often need add water modification at high temperature and become liquid, mixes adding again with moulded coal, and operation is loaded down with trivial details, uses inconvenience.Operation of the present invention is simple, cost saving.
(3) moulded coal of the present invention's production has higher physical strength, and ultimate compression strength can reach 1.6-2.2Mpa; Wet tenacity＞95%; Hot strength＞250N/.
(4) moulded coal of the present invention's production has higher water resistance, in water, soaks after 24 hours, and multiple dry strength can reach former intensity.
Embodiment
Embodiment 1
Proportioning raw materials: the fine coal 90g of Gujiao City, the coal slime 30g of Gujiao City, denaturation cornstarch 0.36g, borax 0.0036g, wilkinite 2.4g, water 12g, methyl silanol salt 0.6g
Production stage:
(1) in proportion sticker denaturation cornstarch 0.36g, linking agent borax 0.0036g and hot-setter wilkinite 2.4g are mixed;
(2) get the fine coal 90g of Gujiao City, the coal slime 30g of Gujiao City it mixed after, the powder that step (1) is mixed adds in the coal, stirring and evenly mixing;
(3) 12g water is added in the material of step (2) mixing stirring and evenly mixing;
(4) in the material of step (3) gained, add methyl silanol salt 0.6g stirring and evenly mixing, with material coldmoulding under 20Mpa, oven dry gets product.
The products obtained therefrom detected result:
| Sequence number | Index name | Unit | Briquette prod |
| 1 | Wet tenacity | ％ | 92.21 |
| 2 | Ultimate compression strength | N/ | 910 |
| 3 | Fall strength of briquette | ％ | 98.40 |
| 4 | Immersion intensity | N/ | 821 |
| 5 | Hot strength | N/ | 444 |
Embodiment 2
Proportioning raw materials: Yangcheng fine coal 120g, denaturation cornstarch 0.48g, borax 0.0048g, wilkinite 4.8g, water 12.5g, vinylformic acid 0.6g
Production stage:
(1) in proportion sticker denaturation cornstarch 0.48g, linking agent borax 0.0048g and hot-setter wilkinite 4.8g are mixed;
(2) step (1) is mixed powder adds in the fine coal of 120g Yangcheng stirring and evenly mixing;
(3) 12.5g water is added in the material of step (3) mixing stirring and evenly mixing;
(4) in the material of step (3) gained, add vinylformic acid 0.6g stirring and evenly mixing, with material coldmoulding under 20Mpa, oven dry gets product.
The products obtained therefrom detected result:
| Sequence number | Index name | Unit | Briquette prod |
| 1 | Wet tenacity | ％ | 96.8 |
| 2 | Ultimate compression strength | N/ | 710 |
| 3 | Fall strength of briquette | ％ | 98.08 |
| 4 | Immersion intensity | N/ | 533 |
| 5 | Hot strength | N/ | 266 |
Embodiment 3
Proportioning raw materials: Jincheng fine coal 120g, modified tapioca starch 0.72g, borax 0.0072g, wilkinite 7.2g, water 14g, vinylformic acid 0.6g
Production stage:
(1) in proportion sticker modified tapioca starch 0.72g, linking agent borax 0.0072g and hot-setter wilkinite 7.2g are mixed;
(2) step (1) is mixed powder adds in the fine coal of 120g Jincheng stirring and evenly mixing;
(3) 14g water is added in the material of step (2) mixing stirring and evenly mixing;
(4) in the material of step (3) gained, add vinylformic acid 0.6g stirring and evenly mixing, with material coldmoulding under 20Mpa, oven dry gets product.
The products obtained therefrom detected result:
| Sequence number | Index name | Unit | Briquette prod |
| 1 | Wet tenacity | ％ | 89.24 |
| 2 | Ultimate compression strength | N/ | 710 |
| 3 | Fall strength of briquette | ％ | 96.32 |
| 4 | Immersion intensity | N/ | 355 |
| 5 | Hot strength | N/ | 355 |
Embodiment 4
Proportioning raw materials: Yangquan fine coal 120g, modified tapioca starch 0.72g, borax 0.0072g, wilkinite 7.2g, water 13g, vinylformic acid 0.6g
Production stage:
(1) in proportion sticker modified tapioca starch 0.72g, linking agent borax 0.0072g and hot-setter wilkinite 7.2g are mixed;
(2) step (1) is mixed powder adds in the fine coal of 120g Yangquan stirring and evenly mixing;
(3) 13g water is added in the material of step (2) mixing stirring and evenly mixing;
(4) in the material of step (3) gained, add vinylformic acid 0.6g stirring and evenly mixing, with material coldmoulding under 20Mpa, oven dry gets product.
The products obtained therefrom detected result:
| Sequence number | Index name | Unit | Briquette prod |
| 1 | Wet tenacity | ％ | 88.9 |
| 2 | Ultimate compression strength | N/ | 710 |
| 3 | Fall strength of briquette | ％ | 98.09 |
| 4 | Immersion intensity | N/ | 577 |
| 5 | Hot strength | N/ | 266 |
Claims (2)
1. industrial shaping coal is characterized in that component is counted by weight to comprise: coal 90-98, sticker 0.25-1.0, linking agent 0.0025-0.01, hot-setter 1.5-8, water-resisting agent 0.25-0.65;
Described coal is one or more in fine coal, coal slime and the coal gangue; Described sticker is a modified starch; Described linking agent is a borax; Described hot-setter is a sodium bentonite; Described water-resisting agent is that mass concentration is methyl silanol salt or the vinylformic acid of 10-20%;
The preparation method of industrial shaping coal comprises the steps:
(1) according to the above ratio sticker, linking agent and hot-setter are mixed;
(2) step (1) is mixed powder adds in the coal stirring and evenly mixing;
(3) water with moulded coal raw material gross weight 6-13% joins in the material of step (2) mixing stirring and evenly mixing;
(4) in the material of step (3) gained, add the water-resisting agent stirring and evenly mixing, coldmoulding, oven dry gets product.
2. a kind of industrial shaping coal as claimed in claim 1 is characterized in that described modified starch is modified corn starch, cassava modified starch or wheat modified starch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100745028A CN101580749B (en) | 2009-06-17 | 2009-06-17 | Industrial coal briquette and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100745028A CN101580749B (en) | 2009-06-17 | 2009-06-17 | Industrial coal briquette and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101580749A CN101580749A (en) | 2009-11-18 |
| CN101580749B true CN101580749B (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100745028A Active CN101580749B (en) | 2009-06-17 | 2009-06-17 | Industrial coal briquette and preparation method thereof |
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| CN (1) | CN101580749B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786996A (en) * | 2011-05-20 | 2012-11-21 | 李长安 | Technology of sodium-based serial composite modified briquette for gasification |
| CN103060041B (en) * | 2013-01-24 | 2014-02-26 | 广西桂晟新能源科技有限公司 | Briquette containing composite binder and burning synergistic agent and preparation method thereof |
| CN104673420B (en) * | 2015-02-11 | 2017-04-19 | 北京乾海环保科技有限公司 | Method for producing semicoke briquette coal based on dry biomass binder |
| WO2017134566A1 (en) * | 2016-02-05 | 2017-08-10 | Coal Tech Llc | A process for the agglomeration of coal slurry including ultrafines |
| CN105754675A (en) * | 2016-03-09 | 2016-07-13 | 大同煤矿集团朔州煤电宏力再生工业股份有限公司 | Novel industrial briquette production process |
| CN110540848B (en) * | 2019-09-17 | 2020-12-08 | 上海茜昆实业发展有限公司 | High-strength coke and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931973A (en) * | 2006-10-11 | 2007-03-21 | 葛苏 | Clean briquette for producing chemical fertilizer gas and its prepn process and application |
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2009
- 2009-06-17 CN CN2009100745028A patent/CN101580749B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931973A (en) * | 2006-10-11 | 2007-03-21 | 葛苏 | Clean briquette for producing chemical fertilizer gas and its prepn process and application |
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| CN101580749A (en) | 2009-11-18 |
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